'True Blood''s resident bitch in heels, Kristin Bauer van Straten, is stopping by 'Once Upon a Time' (Sun., Oct. 30, 8PM ET on ABC) to play someone even witchier. Maleficent is best known as the dark and twisted villainess of 'Sleeping Beauty,' but on ABC's new fairy tale drama, she'll face off with Lana Parilla's Evil Queen.

I caught up with Bauer -- who teased me with 'True Blood' Season 5 knowledge before I could even beg for it -- to hear more about the self-proclaimed "Mistress of all Evil" and her equally evil TV rival.

She also teased a possible return to the fairy tale land, and admitted which fellow guest star made her go all fangirl.

It's come to the time of the TV season that 'True Blood' fans are both eagerly anticipating and dreading. The vampire drama's season finale is Sunday night, and Kristin Bauer, who plays Pam De Beaufort, dropped by 'Good Day New York.' (weekdays, 9AM ET on Fox) to talk about it. She managed to describe the finale without revealing any details, and also fielded a question about her off-screen relationship with co-star Alexander Skarsgard.

If you were trying to avoid spoilers, don't worry, this clip is safe. When asked what she could say about the finale, Bauer was descriptive, but tight-lipped. "There's gonna be some death, some sex, some blood," she said, reassuring audiences that the finale will indeed be an episode of 'True Blood.'

Bon Temps is full of baddies, but vampire Pam has been one of the most terrifying -- and consistently funny -- characters on HBO's 'True Blood' (Season 4 premieres Sun., June 26 at 9PM). We have actress Kristin Bauer to thank for that.

A background character who's stolen almost every scene she's been in, Bauer told AOL TV that this is Pam's year to shine.

"This year, the main thing that I felt was that I got to play her really edgy. It's a really different side of Pam. We haven't seen it, we've suspected it, but she hasn't been unleashed ever. This year I feel is her most raw."

Witches come to Bon Temps and turn Pam's world upside-down, but Bauer told us we'll see Pam get in on the action with a fighting style that resembles that of a "feral monkey."

"I discovered how little of a chess player -- a strategist -- she is," Bauer said. "She's a reacter. Also, we already did see when her maker is in trouble, she jumps right in. I was going to say 'and asks questions later,' but she doesn't even do that."

Bauer wasn't shy about the bonuses of playing the oh-so-fabulous vampire. She also dished Pam blog ideas, behind-the-scenes fun and the blooper reel we hope fans will see one day.

It's been a long time coming. But then, vampires are essentially immortal, so "a long time" is kind of relative in this situation. Tonight on 'True Blood' (Sun., 9PM ET on HBO), Eric (Alexander Skarsgård) finally has a chance to get back at Russell -- for real, this time around. And hey, it only took him a thousand years or so. Clearly, Eric is a man who doesn't like to rush these things.

Ten centuries ago, Vampire King Russell (Denis O'Hare) slaughtered Eric's entire family. That's a pretty traumatic event. Eric still isn't over it, for obvious reasons. In addition, the vampire Authority has ordered him to kill Russell -- although Eric would be willing to do that no matter what. Now, Eric figures out a way to murder his nemesis.

In these tough economic times, even Hollywood actors are happy to get some job security. But is there really any job security when your job involves vampires?

According to the Hollywood Reporter, HBO's vampire drama 'True Blood' has promoted Kristin Bauer to series regular. Bauer, who prior to appearing on 'True Blood' had bounced around from one TV guest spot to another for nearly 15 years, plays Pam, a vampire who spends most of her time at undead theme bar Fangtasia.

That too may be changing, however. You may recall that last week we provided you with a comprehensive overview of some of the rumors swirling around the show''s upcoming third season. One that we didn't mention, though, can now be revealed, as it appears that Pam may be in line for a juicy storyline of her own -- a romantic one.